The utility model relates to a safety pressure reducing device, comprising a vacuum pump, a check valve arranged at the air inlet of the vacuum pump and a frequency conversion regulator electrically connected with the vacuum pump. The pressure relief device of the utility model, by setting the inlet of the mechanical vacuum pump check valve to prevent air or liquid poured into the vacuum system, and the regulator through the frequency setting, the vacuum degree can be conveniently adjusted, it can replace the steam vacuum pump, low cost, safe and reliable, easy to operate.
【技术实现步骤摘要】
【技术保护点】
1.一种安全减压装置,其特征在于,该减压装置包含:真空泵(10),设置在真空泵(10)进气口(11)的止回阀(12)以及与真空泵(10)电连接的变频调节器(13)。
【技术特征摘要】
【专利技术属性】
技术研发人员:徐陈国,戴必强,
申请(专利权)人:上海通凌新能源科技发展有限公司,
类型:实用新型
国别省市:31
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